add working xpub settings view with click to copy to clipboard

Author: sneurlax

lib/pages/settings_views/global_settings_view/xpub_view.dart

@@ -1,12 +1,27 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:qr_flutter/qr_flutter.dart';
+import 'package:stackwallet/notifications/show_flush_bar.dart';
+import 'package:stackwallet/utilities/assets.dart';
+import 'package:stackwallet/utilities/clipboard_interface.dart';
 import 'package:stackwallet/utilities/text_styles.dart';
 import 'package:stackwallet/utilities/theme/stack_colors.dart';
 import 'package:stackwallet/widgets/background.dart';
 import 'package:stackwallet/widgets/custom_buttons/app_bar_icon_button.dart';
+import 'package:stackwallet/widgets/rounded_white_container.dart';
 
 class XPubView extends ConsumerStatefulWidget {
-  const XPubView({Key? key}) : super(key: key);
+  const XPubView({
+    Key? key,
+    this.xpub,
+    this.clipboardInterface = const ClipboardWrapper(),
+  }) : super(key: key);
+
+  final String? xpub;
+  final ClipboardInterface clipboardInterface;
 
   static const String routeName = "/xpub";
 
@@ -15,8 +30,11 @@ class XPubView extends ConsumerStatefulWidget {
 }
 
 class _XPubViewState extends ConsumerState<XPubView> {
+  late ClipboardInterface _clipboardInterface;
+
   @override
   void initState() {
+    _clipboardInterface = widget.clipboardInterface;
     super.initState();
   }
 
@@ -25,6 +43,16 @@ class _XPubViewState extends ConsumerState<XPubView> {
     super.dispose();
   }
 
+  Future<void> _copy() async {
+    await _clipboardInterface.setData(ClipboardData(text: widget.xpub));
+    unawaited(showFloatingFlushBar(
+      type: FlushBarType.info,
+      message: "Copied to clipboard",
+      iconAsset: Assets.svg.copy,
+      context: context,
+    ));
+  }
+
   @override
   Widget build(BuildContext context) {
     return Background(
@@ -47,7 +75,25 @@ class _XPubViewState extends ConsumerState<XPubView> {
             left: 16,
             right: 16,
           ),
-          child: Text("TODO"),
+          child: Column(children: [
+            if (widget.xpub != null)
+              RoundedWhiteContainer(
+                padding: const EdgeInsets.all(12),
+                child: QrImage(data: widget.xpub!),
+                onPressed: () => _copy(),
+              ),
+            if (widget.xpub != null)
+              const SizedBox(
+                height: 8,
+              ),
+            if (widget.xpub != null)
+              RoundedWhiteContainer(
+                padding: const EdgeInsets.all(12),
+                child: Text(widget.xpub!,
+                    style: STextStyles.largeMedium14(context)),
+                onPressed: () => _copy(),
+              )
+          ]),
         ),
       ),
     );

lib/pages/settings_views/wallet_settings_view/wallet_settings_view.dart

@@ -1,5 +1,7 @@
 import 'dart:async';
 
+import 'package:bip32/bip32.dart' as bip32;
+import 'package:bip39/bip39.dart' as bip39;
 import 'package:event_bus/event_bus.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
@@ -58,6 +60,7 @@ class WalletSettingsView extends StatefulWidget {
 class _WalletSettingsViewState extends State<WalletSettingsView> {
   late final String walletId;
   late final Coin coin;
+  late String xpub;
   late final bool xPubEnabled;
 
   late final EventBus eventBus;
@@ -74,6 +77,7 @@ class _WalletSettingsViewState extends State<WalletSettingsView> {
     coin = widget.coin;
     xPubEnabled =
         coin != Coin.monero && coin != Coin.wownero && coin != Coin.epicCash;
+    xpub = "";
 
     _currentSyncStatus = widget.initialSyncStatus;
     // _currentNodeStatus = widget.initialNodeStatus;
@@ -274,6 +278,37 @@ class _WalletSettingsViewState extends State<WalletSettingsView> {
                                         SyncingPreferencesView.routeName);
                                   },
                                 ),
+                                if (xPubEnabled)
+                                  const SizedBox(
+                                    height: 8,
+                                  ),
+                                if (xPubEnabled)
+                                  Consumer(
+                                    builder: (_, ref, __) {
+                                      return SettingsListButton(
+                                        iconAssetName: Assets.svg.eye,
+                                        title: "Wallet xPub",
+                                        onPressed: () async {
+                                          final List<String> mnemonic = await ref
+                                              .read(
+                                                  walletsChangeNotifierProvider)
+                                              .getManager(widget.walletId)
+                                              .mnemonic;
+
+                                          final seed = bip39.mnemonicToSeed(
+                                              mnemonic.join(' '));
+                                          final node =
+                                              bip32.BIP32.fromSeed(seed);
+                                          final xpub =
+                                              node.neutered().toBase58();
+
+                                          Navigator.of(context).pushNamed(
+                                              XPubView.routeName,
+                                              arguments: xpub);
+                                        },
+                                      );
+                                    },
+                                  ),
                                 const SizedBox(
                                   height: 8,
                                 ),
@@ -285,19 +320,6 @@ class _WalletSettingsViewState extends State<WalletSettingsView> {
                                         .pushNamed(DebugView.routeName);
                                   },
                                 ),
-                                if (xPubEnabled)
-                                  const SizedBox(
-                                    height: 8,
-                                  ),
-                                if (xPubEnabled)
-                                  SettingsListButton(
-                                    iconAssetName: Assets.svg.eye,
-                                    title: "Wallet xPub",
-                                    onPressed: () {
-                                      Navigator.of(context)
-                                          .pushNamed(XPubView.routeName);
-                                    },
-                                  ),
                               ],
                             ),
                           ),

lib/route_generator.dart

@@ -399,10 +399,18 @@ class RouteGenerator {
             settings: RouteSettings(name: settings.name));
 
       case XPubView.routeName:
-        return getRoute(
+        if (args is String) {
+          return getRoute(
             shouldUseMaterialRoute: useMaterialPageRoute,
-            builder: (_) => const XPubView(),
-            settings: RouteSettings(name: settings.name));
+            builder: (_) => XPubView(
+              xpub: args,
+            ),
+            settings: RouteSettings(
+              name: settings.name,
+            ),
+          );
+        }
+        return _routeError("${settings.name} invalid args: ${args.toString()}");
 
       case AppearanceSettingsView.routeName:
         return getRoute(